Diagnostic instrument.



H WEDER, SR 81 C. H. WOLFF.

, DIAGNOSTIC INSTRUMENT. APPLICATION man OCT. I3. 1913. 4

2 SHEETS-SHEET l.

Q war 'w I M W4. dr e Patented June 12, 1917'.

H. WEDER, Sn. & C. H. WOLFF.

DMGNOSTIC INSTRUMENT. APPLICATION FILED OCT. 13. 1913.

Patented June 12, 1917.

A 2 SHEETSSHEET 2- grwe'nfob BERT-[ANN WEBER,

SR, AND OHARLESH. WOLFE, OF PHILADELFHIA, PElfil'NSYLV iamenosrrcINSTRUMENT.

Specification of Letters Patent.

Patented J une 12, 1917,.

Application filed October 13,1918. Serial No. 794,874, I

To all whom it may concern:

Be it known that we, HERMANN WEBER, Sn, and CHARLES H. WoLrr citizens ofthe United States, residing in Fhiladelphia, in the county ofPhiladelphia and State of Pennsylvania, have invented certain new anduseful Improvements in Diagnostic Instruments; and we do declare thefollowing to be a full, clear, and exact description of the invention,skilled in the art to which it appertains to make and use the same,reference being had to the accompanying drawings, and to the letters andfigures of reference marked thereon, tion.

Our invention relates to surgical instruments comprising a portableelectric lamp and it has for its object to produce an instrumentespecially well adapted for diagnostic purposes and in which the lampproper will bear such relation'to the lamp casing that the light-rayswill be projected away from the user reflection of the raysv toward theuser; also in features of construction which enable a magnifying glassbeing sustained by the casing in such relation to the lamp proper thatthere will beno reflection of light-raysand which also will enable ceronthe glass, tainother diagnostic instruments 'to be supported by thecasing in such relation to the.

lamp that the light-rays will be projected in relation to the instrumentin use so that the best results are attained.

To the accomplishment of the foregoing and. such other'objects as mayhereinafter appear the invention consists in features of constructionhereinafter particularly described and then sought to be clearly definedby the claims, reference being had to the accompanying drawings forminga part hereof and in whic Figure lis a side elevation of a lampconstructed in accordance with our invention and showing atongue-depressor supported at the front of the lamp, and a magnifyingglass at the side Fig. 2 is a plan view of the same parts;

Fig. 3 is a frontelevation of the same parts, the tongue depressor andthe magnifying glass being shown in dotted lines;

Fig. 1 is a vertical section through the lamp;

Fig. 5 is a cross section through the lamp such as will enable others.

which form a part of this specifica so that there will be no' 'ings 14formed on the line 55 of rection of the-arrows; 1

Fig.6 is a side view of an ear speculum which may be attached to thelamp.

In the drawings the numeral 1 designates the lamp casing or shell whichcontains the dry batte cell 2. At one end the shell is formed with araised chamber 3 in communication with the interior .of the shell andoccupying a portion only of the end of the shell and for back from thefront wall of the shell and provided with an inwardly extending screwthreaded socket 5 designed to receive and support the electric-lightbulb 6 so that the light difiusing end of the bulb will lie adjacent tothe vertical wall 4 back from the front "wall of the shelland in centralrelation. to the wall so as to lie back from the ends of the wall. Thewall serves as a shield with a'spring-plate. 7 which contacts with "thelamp socket, and has also a spring-plate 8 which projects into thechamber 3 1n line with the terminal of the lamp and with a push button 9so that when the push button is actuatedtopress the plate 8 against theterminalof the lamp the electric circuit is made and the light isdifiused from the bulb. The push button carries at its point ahard-rubber button 10 so that waste of current is prevented whenthe lampis not glowing. The push button is carried by a springplate 11 securedto the side of the lamp shell;

The shell has a removable cap 12 at one end which is provided withspring ends or 1 looking in the di inner faces to v in the sides of theshell so as to hold the cap in placaby a sort of snap ball and socketfastening. a

The casing or shell is provided at one side, back from the vertical wall4: of the chamber 3, with-an apertured clip 15 designed to receive theshank 16 of a magnifying glass 'or lens' 17 so thatthe glass issupported at engage depressions or open one side of the lamp back fromthe light emitting portion of the light bulb in order that there may beno reflection of the lightrays on the glass, and thus the glass can beused without annoyances from the raysv emitted by the light bulb.

The front wall of the shell is provided with two clips 18, one above theother, designed to receive the forked prong 19 of a tongue depressor 20,or ear speculum 21, or other diagnostic instrument that may be used inconnection with the lamp. The

farther the prong is pressed up in the clips the tighter the instrumentis held to the lamp, and when the lamp is grasped in the hand of theoperator the fingers of the hand may grip the prong of the instrumentand thus a steadier manipulation of the lamp and instrument may beobtained.

We have illustrated and described the preferred details of constructionof the various parts but variations may be made in some of the detailsand the essential features of the invention be retained.

- tip Having described our invention and set chamber, and a battery-celloccupyingtthe larger chamber and having a contact-plate to project intothe smaller chamber'and lie between the insulated tip of the pushvbuttonand terminal ofthe lamp-bulb, the insulated to each other, substantiallyas described.

2. In a diagnostic instrument including an electric-lamp, a shell formedwith a battery cell chamber, a lamp-bulb receiving socket formed in onewall-of the shell, a push-butand cell contact-plate being unattached tonoperably mounted in an opening in the wall of the shell, an insulatingtip carried the push-button, and a by the inner end of battery-celloccupying the chamber of the shell and having a contact-plate to projectbetween the terminal of a lamp-bulb fitting inthe socket providedtherefor and the insulated tip of the push-button, plate and insulatedtip being unattached to each other and adapted to engage one with theother and permitting withdrawal of the cell and its contact-plate awayfrom the insulated tip,

said contact- 3. In a diagnostic instrument including anelectric lamp, abattery-cell incasing shell formed at one end with a lamp-bulb receivingchamber having an upright front wall set back from the front wall of theshell and provided with a lamp-bulb receiving socket, a battery-cell inthe incasing shell and circuit closure contacts, and a tiltable lenssupported from the side of the shell to one side and back of the frontwall of 'the lamp-bulb receiving chamber, substantially as described.

' 4. In a diagnostic instrument including an electric lamp, abattery-cell incasing shell elliptical in cross section and formed atone end with a lamp-bulb receiving chamber above the rear portion of theshell, said chamber having an upright front wall set back from the Irontwall of the shell, a clip applied to the front wall of the shell tosupport a diagnostic implement, a lamp-bulb extended through the frontwall of the lamp-bulb receiving chamber, a battery cell in the incasingshell provided with a contact-plate an insulating button in line withthe contact-plate, substantially as described;

' In testimony whereof we afiix our signatures in presence of twowitnesses.

HERMANN WEBER, SR. CHAS. H. WOLFE.

- Witnesses:

, CHAs. Cone VAN Rrrnn,

GLENDORA KESSLER.

in alinement with the terminal of the lamp-bulb, and a push-buttoncarrying

